Unpack the release tarball in the ownCloud directory (or copy the files thereto). Assuming that your installation directory is called ‘owncloud’ and that it’s inside your working directory, you could execute this command:

1

tar xfj owncloud-latest.tar.bz2

Set the permissions properly

With the next page request the update procedures will run.

If you had 3rd party applications, check if they provide versions compatible with the new release. If so, install and enable them, update procedures will run if needed.

Note: Since I used Turkey owncloud from my VPS provider, I deleted everything inside owncloud folder except data folder. The upgrade is no brainer.